2pez

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[[Image:2pez.png|left|200px]]
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==Crystal structrue of deletion mutant of APS-kinase domain of human PAPS-synthetase 1 in complex with cyclic PAPS and dADP==
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<StructureSection load='2pez' size='340' side='right' caption='[[2pez]], [[Resolution|resolution]] 1.40&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2pez]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2PEZ OCA]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=DAT:2-DEOXYADENOSINE-5-DIPHOSPHATE'>DAT</scene>, <scene name='pdbligand=GGZ:(2S,3AR,4R,6R,6AR)-4-(6-AMINO-9H-PURIN-9-YL)-6-({[(R)-HYDROXY(SULFOOXY)PHOSPHORYL]OXY}METHYL)TETRAHYDROFURO[3,4-D][1,3,2]DIOXAPHOSPHOL-2-OL+2-OXIDE'>GGZ</scene><br>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2pey|2pey]]</td></tr>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PAPSS1, ATPSK1, PAPSS ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Glucokinase Glucokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.2 2.7.1.2] </span></td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2pez FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pez OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2pez RCSB], [http://www.ebi.ac.uk/pdbsum/2pez PDBsum]</span></td></tr>
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<table>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/pe/2pez_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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In mammals, the universal sulfuryl group donor molecule 3'-phosphoadenosine 5'-phosphosulfate (PAPS) is synthesized in two steps by a bifunctional enzyme called PAPS synthetase. The APS kinase domain of PAPS synthetase catalyzes the second step in which APS, the product of the ATP-sulfurylase domain, is phosphorylated on its 3'-hydroxyl group to yield PAPS. The substrate APS acts as a strong uncompetitive inhibitor of the APS kinase reaction. We generated truncated and point mutants of the APS kinase domain that are active but devoid of substrate inhibition. Structural analysis of these mutant enzymes reveals the intrasubunit rearrangements that occur upon substrate binding. We also observe intersubunit rearrangements in this dimeric enzyme that result in asymmetry between the two monomers. Our work elucidates the structural elements required for the ability of the substrate APS to inhibit the reaction at micromolar concentrations. Because the ATP-sulfurylase domain of PAPS synthetase influences these elements in the APS kinase domain, we propose that this could be a communication mechanism between the two domains of the bifunctional enzyme.
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<!--
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Structural mechanism for substrate inhibition of the adenosine 5'-phosphosulfate kinase domain of human 3'-phosphoadenosine 5'-phosphosulfate synthetase 1 and its ramifications for enzyme regulation.,Sekulic N, Konrad M, Lavie A J Biol Chem. 2007 Jul 27;282(30):22112-21. Epub 2007 May 31. PMID:17540769<ref>PMID:17540769</ref>
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The line below this paragraph, containing "STRUCTURE_2pez", creates the "Structure Box" on the page.
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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or leave the SCENE parameter empty for the default display.
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-->
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{{STRUCTURE_2pez| PDB=2pez | SCENE= }}
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===Crystal structrue of deletion mutant of APS-kinase domain of human PAPS-synthetase 1 in complex with cyclic PAPS and dADP===
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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</div>
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== References ==
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<!--
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<references/>
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The line below this paragraph, {{ABSTRACT_PUBMED_17540769}}, adds the Publication Abstract to the page
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__TOC__
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(as it appears on PubMed at http://www.pubmed.gov), where 17540769 is the PubMed ID number.
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</StructureSection>
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-->
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{{ABSTRACT_PUBMED_17540769}}
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==About this Structure==
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[[2pez]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2PEZ OCA].
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==See Also==
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*[[Jaime Prilusky's Favorites|Jaime Prilusky's Favorites]]
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==Reference==
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<ref group="xtra">PMID:017540769</ref><references group="xtra"/>
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Lavie, A.]]
[[Category: Lavie, A.]]

Revision as of 08:35, 7 May 2014

Crystal structrue of deletion mutant of APS-kinase domain of human PAPS-synthetase 1 in complex with cyclic PAPS and dADP

2pez, resolution 1.40Å

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